توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ferriss, T. The 4-hour work week: Escape the 9-5, live anywhere and join the new rich by timothy ferriss (First edition.). Crown Publishers.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ferriss, Timothy. The 4-hour Work Week: Escape the 9-5, Live Anywhere and Join the New Rich by Timothy Ferriss. First edition. New York: Crown Publishers.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Ferriss, Timothy. The 4-hour Work Week: Escape the 9-5, Live Anywhere and Join the New Rich by Timothy Ferriss. First edition. Crown Publishers.